👉🔥👨‍💻A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet, to prevent unauthorized access and protect against cyber threats. 👉Here are some types of firewalls with corresponding emojis: 1. Packet Filtering Firewall 📦🔒- Examines packets of data and filters them based on predefined rules. 2. Stateful

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